--- title: Confidential computing's core trust mechanism is broken.... description: New research from TU Dresden formally verifies that attested TLS, the protocol underpinning confidential computing's trust guarantees, is fundamentally broken.... canonical: https://daily.dev/posts/confidential-computing-s-core-trust-mechanism-is-broken-the-fix-may-not-exist-ki6ponzpx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Confidential computing's core trust mechanism is broken. The fix may not exist | daily.dev og:description: New research from TU Dresden formally verifies that attested TLS, the protocol underpinning confidential computing's trust guarantees, is fundamentally broken.... og:url: https://daily.dev/posts/confidential-computing-s-core-trust-mechanism-is-broken-the-fix-may-not-exist-ki6ponzpx og:image: https://api.daily.dev/og/posts/kI6PoNzPx.png og:image:alt: Confidential computing's core trust mechanism is broken. The fix may not exist og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Confidential computing's core trust mechanism is broken. The fix may not exist **[The Register](https://daily.dev/sources/theregister)** · 11 min read · 0 upvotes · 0 comments ## Summary New research from TU Dresden formally verifies that attested TLS, the protocol underpinning confidential computing's trust guarantees, is fundamentally broken. Using ProVerif, researchers found that all seven examined intra-handshake attestation binding mechanisms fail to prevent relay attacks, where a client verifies a genuine TEE but ends up sending encrypted data to a malicious machine. The flaw affects production systems including Meta's WhatsApp Private Processing, Edgeless Systems' Contrast, and Cocos AI (CVE-2026-33697, CVSS 7.5). The best available fix achieves only level-two binding, proving identity at handshake start but not during data transmission. Level-three binding, which would protect actual application traffic, may be architecturally impossible within intra-handshake attestation. Germany's BSI independently confirmed that confidential computing falls short of digital sovereignty claims. The researchers recommend abandoning intra-handshake attestation in favor of post-handshake attestation, and the IETF's SEAT working group has incorporated formal verification requirements into its charter. Vendor-dominated CCC working groups delayed publishing the vulnerability artifacts for over ten days despite repeated requests. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Building a Zero-Trust Architecture for Confidential AI Factories](https://daily.dev/posts/building-a-zero-trust-architecture-for-confidential-ai-factories-snfbnxpu6) · NVIDIA Developer · 0 upvotes · 0 comments - [Confidential computing and the new regulatory focus on data in use](https://daily.dev/posts/confidential-computing-and-the-new-regulatory-focus-on-data-in-use-avkdyvleq) · Ubuntu · 0 upvotes · 1 comments --- [View this post on daily.dev](https://daily.dev/posts/confidential-computing-s-core-trust-mechanism-is-broken-the-fix-may-not-exist-ki6ponzpx) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Confidential computing's core trust mechanism is broken. 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